Hazardous Weather Conditions
Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.
Fair
36°F
2°C
| Humidity | 97% |
| Wind Speed | Calm |
| Barometer | 30.48 in (1032.4 mb) |
| Dewpoint | 35°F (2°C) |
| Visibility | 10.00 mi |
| Last update | 18 Oct 4:52 am CDT |
Extended Forecast for
5 Miles SSW Pinckneyville IL
Frost Advisory until October 18, 08:00am
NOW until 8:00am Sun
Frost Advisory
Overnight
Low: 37 °F
Areas Frost
Sunday
High: 69 °F
Frost then
SunnySunday Night
Low: 38 °F
Clear
Monday
High: 72 °F
Sunny
Monday Night
Low: 40 °F
Mostly Clear
Tuesday
High: 75 °F
Sunny
Tuesday Night
Low: 42 °F
Mostly Clear
Wednesday
High: 77 °F
Sunny
Detailed Forecast
Overnight
Areas of frost. Otherwise, mostly clear, with a steady temperature around 37. Calm wind.
Sunday
Widespread frost, mainly between 7am and 8am. Otherwise, sunny, with a high near 69. Calm wind becoming south southeast around 5 mph.
Sunday Night
Clear, with a low around 38. Calm wind.
Monday
Sunny, with a high near 72. Calm wind.
Monday Night
Mostly clear, with a low around 40. Calm wind.
Tuesday
Sunny, with a high near 75. Calm wind.
Tuesday Night
Mostly clear, with a low around 42. Calm wind.
Wednesday
Sunny, with a high near 77. Calm wind.
Wednesday Night
Clear, with a low around 44. Calm wind.
Thursday
Sunny, with a high near 79. Calm wind.
Thursday Night
Clear, with a low around 45. Calm wind.
Friday
Sunny, with a high near 79. Calm wind becoming east around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 46. Calm wind.
Saturday
Sunny, with a high near 79. Calm wind becoming south southeast around 5 mph in the afternoon.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
5 Miles SSW Pinckneyville IL
38.02°N 89.41°W
38.02°N 89.41°W
4:46 am CDT Oct 18, 2026
5am CDT Oct 18, 2026-6pm CDT Oct 24, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
